2545504340 has 12 divisors (see below), whose sum is σ = 5345559156. Its totient is φ = 1018201728.

The previous prime is 2545504337. The next prime is 2545504363. The reversal of 2545504340 is 434055452.

It can be written as a sum of positive squares in 2 ways, for example, as 1745067076 + 800437264 = 41774^2 + 28292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2545504297 and 2545504306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63637589 + ... + 63637628.

It is an arithmetic number, because the mean of its divisors is an integer number (445463263).

Almost surely, 2^2545504340 is an apocalyptic number.

2545504340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545504340 is an abundant number, since it is smaller than the sum of its proper divisors (2800054816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545504340 is a wasteful number, since it uses less digits than its factorization.

2545504340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127275226 (or 127275224 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 2545504340 is about 50452.9913880238. The cubic root of 2545504340 is about 1365.3938654182.

Adding to 2545504340 its reverse (434055452), we get a palindrome (2979559792).

The spelling of 2545504340 in words is "two billion, five hundred forty-five million, five hundred four thousand, three hundred forty".